The absolute levels of circulating KL-6 at neither baseline nor the onset of ILD were found not to be statistically significant between the life-threatening pattern (AIP pattern) of 4 patients and the other patterns of 11 patients (Mann-Whitney U-test; p = 0.648 at onset, and p = 0.845 at baseline, respectively). The gene discussed is MUC1; the disease is autoimmune pancreatitis.